Table 5. Changes of volatile compounds during the fermentation of mugwort extracts at room temperature for 120 days

No	Volatile compounds	R.T.¹⁾ (min)	Fermentation period (day) / Area%²⁾
No	Volatile compounds	R.T.¹⁾ (min)	0	30	60	90	120
1	2-Mercaptoethanol	3.361		0.03±0.00^a
2	Formohydrazide	3.653					0.15±0.01^a
3	Thiirane	3.756			0.29±0.01^a
4	Ethyl propanoate	3.762		3.31±0.13
5	3-Methyl-1-butanol	4.294	65.95±2.64^b	82.98±3.32^a	74.25±2.97^a^b	74.31±2.97^a^b	73.82±2.95^a^b
6	Isobutanol	5.021				0.09±0.01^a	0.11±0.02^a
7	2-Fluoropropene	5.233				0.06±0.00^a	0.07±0.02^a
8	Glycolic acid	5.290			0.04±0.00^a
9	Isobutyl acetate	5.381	2.76±0.11^a
10	Propanamide	5.410		0.28±0.01^a
11	Propanenitrile	5.816		0.01±0.00^a
12	Acetic acid	6.039			0.09±0.00^a	0.03±0.00^b
13	Ethylvinyl sulfide	6.280	0.09±0.00^a
14	3-Hydroxytetrahydrofuran	6.291		0.05±0.00^a
15	1,2 Dimethyl hydrazine	6.371				0.03±0.00	0.06±0.00
16	Bis(2-butoxyethyl) ether	6.646		1.53±0.06^a
17	1-Nonen-3-ol	6.692	1.88±0.08^c			3.06±0.12^b	3.61±0.14^a
19	3-Ethoxy-1-butene	6.943	0.83±0.03^c	2.63±0.09^b	2.90±0.12^a	2.63±0.11^b	3.03±0.15^a
20	3,3-Dimethyldiaziridine	7.178			4.78±0.19^a
21	Furfural	7.333				1.44±0.06^a	1.40±0.04^a
22	1-Silacyclo-2,4-hexadiene	7.355	0.20±0.01^a	0.15±0.02^b
23	2-Butene	7.579	0.02±0.00^a
24	Urea	7.750			0.09±0.19^a
25	2-Propenal	7.813	0.06±0.00^a	0.08±0.01^a		0.07±0.00	0.08±0.00
26	cis-3-Hexene-1-ol	8.139			1.95±0.05^b	2.34±0.09a^b	2.68±0.11^a
27	trans,trans-2,4-Hexadiene	8.145	0.53±0.02^b	0.65±0.03^a
28	3-Ethoxypropanol	8.397		0.10±0.00^a
29	Propylcyclopropane	8.614	0.41±0.02^c	0.33±0.01^c	0.88±0.06^b	0.98±0.09^a	1.08±0.10^a
30	Isopentyl alcohol	8.872	5.89±0.24^a	0.37±0.02^b	0.12±0.01^c	0.13±0.01^c	0.12±0.00^c
31	Cyclohexane	9.393			0.05±0.00^a	0.02±0.00^a
32	N-Methyleneethenamine	9.410					0.02±0.00^a
33	(2-Methyl-1-propenyl)hydrazine	10.491	0.04±0.00^a
34	Tetrahydropyran	10.497		0.01±0.00^a
35	Butyrolactone	10.571			0.20±0.02^a	0.16±0.01^b	0.15±0.01^b
36	Benzaldehyde	11.487				1.14±0.03^a	1.13±0.05^a
37	Benzoyl isothiocyanate	11.504	0.04±0.00^a
38	2-Formyl-5-methylfuran	11.653			1.10±0.08^a	0.57±0.02^b	0.49±0.02^b
39	2,3-Dihydro-1H-imidazo[1,2-b]pyrazole	11.675	0.07±0.00^a	0.04±0.00^b
40	2-Buten-1-ol	12.162	0.05±0.00^b	0.02±0.00^b	0.17±0.01^a	0.16±0.02^a	0.18±0.02^a
41	1,3-Dithiolane	12.374		0.01±0.00^a
42	2,2-Dimethyl-3-octanol	12.660	0.11±0.01^a
43	6-Nonynoic acid	12.712				0.27±0.01^a
44	7-Chlorohept-2-yne	12.791		0.34±0.02^a
45	β-trans-Ocimene	12.789			0.26±0.01^a		0.30±0.03^a
46	Benzyl alcohol	13.798	1.16±0.05^b	0.93±0.04^b	2.90±0.12^a	2.75±0.11^a	2.56±0.10^a
48	2,3-Dihydro-1-benzothiophene	14.525		0.01±0.00^a
49	2-(2-Methylvinyl)thiophene	15.109				0.02±0.00^a	0.03±0.01^a
50	2-Propenamide	15.607	0.02±0.00^a			0.03±0.00^a	0.04±0.02^a
51	Phenylethyl alcohol	15.984	1.96±0.08^c	4.28±0.17^b	6.01±0.24^a	5.76±0.23^a	5.48±0.22^a
52	2-(Methylthio)ethylamine	16.677				0.02±0.00^a
53	Diaminomaleonitrile	16.825	0.09±0.00	0.04±0.00^a	0.04±0.00^a	0.04±0.00^a	0.05±0.00^a
54	1-(2-Thienyl)-1-propanone	17.117			0.39±0.02^a
55	N-(2-Propynyl)aziridine	17.123				0.27±0.01	0.22±0.01
56	5,5-Dimethyl-1,3-hexadiene	17.358	0.12±0.05^b		0.24±0.01^a
57	2,3,3-Trimethyl-1,4-pentadiene	17.361		0.07±0.00^b		0.27±0.01^a	0.27±0.01^a
58	3,5-Dimethylcyclohexene	17.363
59	Benzyl azide	17.661	0.01±0.00^b	0.01±0.00^b	0.03±0.00^a
60	2,1-Benzisoxazole	17.655				0.04±0.00^a	0.05±0.00^a
61	Ethyl caproate	18.118		0.08±0.02^a	0.10±0.02^a	0.10±0.03^a	0.10±0.01^a
62	5-Hydroxymethyl-2-furaldehyde	18.845	1.32±0.05^b	1.07±0.04^b	2.75±0.11^a	2.74±0.11^a	2.54±0.10^a
63	Tetracyclo[3.2.0.0(2,7).0(4,6)]heptane	19.303		0.02±0.00^a
64	2-Propenoic acid-2-phenylethyl ester	19.589	0.12±0.04^a	0.07±0.02^b
65	3-(4-Methylphenyl)-1-propanol	20.916	0.01±0.00^a
66	2,3,4,5-Tetrahydropyridazine	22.324	0.01±0.00^a		0.02±0.00^a
67	2-Methylthietane	22.689			0.03±0.00^a
68	trans-2-Butene episulfide	22.693				0.03±0.00^a
69	α-Ethyl-1-cyclohexaneacetic acid	22.696					0.02±0.00^a
70	Ethyl caprate	22.699		0.05±0.01^a
71	(+)-Camphor-10-sulfonyl chloride	23.154				0.29±0.05^a
72	2-Methylpropanoic acid	27.045				0.02±0.00^a	0.02±0.00^a
73	1,2-Dimethoxy-ethane	27.051			0.03±0.01^a
74	Ethyl undecanoate	27.055	0.13±0.03^a
75	4-Hydroxy-2-butanone	32.870		0.02±0.00^a
76	3-Hydroxy-2-butanone	36.103	0.02±0.00^a
77	Arachidic acid ethyl ester	36.108		0.02±0.00^a	0.20±0.01^a	0.10±0.01^a	0.10±0.00^a
78	2-Pentyn-1-ol	38.804			0.05±0.02^a
79	Methyl 13-octadecenoate	38.809		0.35±0.05^a
80	2-Methylaziridine	39.135		0.02±0.00^b	0.04±0.01^a
81	2,2,4-Trimethyl-1,3-pentanediol	39.141					0.04±0.00^a

¹⁾R.T., Retention time.
²⁾Values indicate the mean's of three replication (n=3). Different superscripts within the row are significantly different at p<0.05 by Duncan’s multiple range test.